fix(core): fixes services.yml

Resources/config/services.yml

@@ -10,3 +10,7 @@ services:
     whatwedo\CronBundle\:
         resource: '../../*'
         exclude: '../../{DependencyInjection,Entity,Kernel.php}'
+
+    whatwedo\CronBundle\EventListener\ExecutionSubscriber:
+        tags:
+            - { name: doctrine.event_subscriber, connection: default }